<% form_tag( reply_topic_path(@topic.forum, @topic), :method => :post) do -%>
 <p><label for="topic_reply_title">主题</label><br/>
 <%= text_field("topic_reply", "title")%>
 </p>
  
  <p><label for="topic_reply_content">内容</label><br/>
 <%= text_area("topic_reply", "content", "cols" => 50, "rows" => 8)%>
 </p>
   
  <%= submit_tag "提交" %>
<% end -%>
